Create GreatSQL Data Source

NineData supports adding various types and environments of data sources to the console for unified management. You can use database DevOps, backup and recovery, data replication, and database comparison features for data sources that have been added. This article introduces how to add a GreatSQL data source to NineData.

Prerequisites

• The server IP address of NineData has been added to the data source allowlist. Please refer to the image below for instructions on how to obtain the server IP address.

  

• Make sure you have available data source quota; otherwise, the data source cannot be added. You can quickly check your remaining quota at the top-right corner of the NineData console.

Operation Steps

1. Log in to the NineData Console.

2. On the left navigation pane, click > .

3. Click  tab, and click  on the page. In the popup window for selecting the data source type, choose > (the type of data source to be added), and configure the parameters based on the table below on the page.
   tip

   If you make a mistake during the operation, you can click the icon at the top of the page to make a new selection.

4. Configure the parameters of the data source:

   Parameter	Description
   	Enter the name of the data source. To facilitate subsequent search and management, please use a meaningful name.
   	Choose the access method of the data source. Supports access through , , SSH Tunnel three ways. : Access the data source through a public network address. : A secure and fast intranet access method provided by NineData. You need to first connect the host where the data source is located. For the connection method, please refer to Add Gateway. SSH Tunnel: Access the data source through an SSH tunnel.
   choose configuration items	: The public network connection address and port of the data source.
   choose configuration items	: Select the NineData gateway installed on the host where the data source is located. : Can be written as localhost (the data source is on the local machine) or the intranet IP of the host where the data source is located.
   choose SSH Tunnel configuration items	: Enter the public IP or domain name of the server where the target data source is located, as well as the corresponding port number (the default port number for SSH service is 22). : Choose the SSH authentication method. : Connect through (i.e., the server's login name) and (i.e., the server's login password). : Enter the login username of the server where the target data source is located. : Enter the login password of the server where the target data source is located. (recommended): Connect through and . : Enter the login username of the server where the target data source is located. : Click to upload the private key file, which is a key file without a suffix. If you have not created one yet, please refer to Generate SSH Tunnel Key File. : Enter the password set when generating the key file. If you did not set a password during the key generation process, leave this field blank. Note: After the SSH configuration is completed, you need to click the on the right, and there may be the following two results: Prompt : Indicates that the SSH Tunnel has been established. Prompt error message: Indicates a connection failure, you need to troubleshoot the cause of the error according to the error message and retry. : Can be written as localhost (the data source is on the local machine) or the intranet IP of the host where the data source is located.
   	Choose the deployment architecture of the data source. : A single-machine deployed database, only one connection address and port need to be filled in. : A database deployed with a disaster recovery architecture, usually including one master node and one or more disaster recovery nodes. You can click the button below to enter multiple node addresses and ports. : A database deployed with a read-write separation architecture, usually including one write node (master node) and multiple read nodes (slave nodes). You can click the button below to enter multiple node addresses and ports.
   	The username of the data source.
   	The password of the data source.
   	Choose the region closest to your data source location to effectively reduce network latency.
   	Select based on the actual business use of the data source, as an environmental identifier for the data source. Default provides and environments, and supports you to create a custom environment. Note: Under the organization mode, the database environment can also be applied to permission policy management, for example, the default role only supports accessing data sources in the environment and cannot access data sources in other environments. For more information, please refer to Manage Roles.
   	Whether to use SSL encryption to access the data source (default on). If the data source enforces SSL encrypted connections, this switch must be turned on, otherwise, the connection will fail. Click the switch on the right to turn on or off encrypted transmission. Click the > to the left of to expand detailed configuration. : Supports the following two methods. : Automatically detect the server's SSL status, if the server has SSL enabled, it will prioritize connecting through SSL, if the server does not have SSL enabled, it will connect using a non-SSL method. : Always use SSL to connect to the data source, if the server does not support this method or cannot establish an SSL connection for other reasons, the connection will fail. : Specify the SSL-Cipher encryption algorithm. : If the server uses a certificate issued by a self-signed CA, you need to upload the root certificate of this CA here. : Check to verify the server's name and IP address, etc., to ensure that you are connecting to the real server and avoid man-in-the-middle attacks. : If the server requires the client to provide a certificate, you need to upload the client's certificate and key here, the server will verify the information you uploaded to ensure the security of the connection. Note: Under normal circumstances, if the server supports using SSL encrypted connections, you only need to select , no need to configure other options, the system will automatically generate a key for you to connect.

5. After all configurations are completed, click the next to to test whether the data source can be accessed normally. If prompted with , you can click to complete the addition of the data source. Otherwise, please recheck the connection settings until the connection test is successful.